Improvement in gang-plow



J. T. WATKINS.V

Gang Plow.

No. 79,880. y Patented July 14,1868.

4F/c. 5 Y m B 4. c

www,... V )Mfy/rM/M N PETEnS. PHOTO-LITHOGRAPHER, wAsmmsTON D C @nitrofaitra atrnt ffr,

JAMES T. WATKINS, OF SANTA CLARA, CALIFORNIA'.

LettersPatent No. 79,880, dated July 14, 1868.

IMPROVEMENT IN GANG-PLOW.

@te Schnitte referat in in igise ttta's ntent mit mating peut tf tiptime.

TO ALL WHOM, IT MAY CON CERN:

4,Be it known that I, JAMES T. WATKINS, of Santa Clara, county of SantaClara, State of California, have invented an Improved Gang-Plow; and Ido hereby declare the following description and accompanying drawingsare snilicient to enableany person skilled in the art or sciencet'owhich itniost nearly appertains to make and use my snid invention orimprovements without further invention or experiment.

The nature of my invention is the construction ofan improved gang-plow,having for itsohce, nrst, anovel method of raising and lowering theplows, either separately or' collectively, so as to entirely clear theground; second, a device by which the depth of the furrows is determinedand regulated; it also relates to a simple mode o f raising, andlowering the furrow-wheel, so that the machine shall at all times standhorizontal, whether at work, or passing from one point to another." T

Theniachinc is mounted upon three wheels, the steering-wheelbeing'placed behind, and so mounted as to follow easily in the furrows.Its periphery is made convex, in order to give it a hold upon theground, and to guide more easily, as well as to make it self-cleaning.The same form is used for the other wheels.

To more fully explain my invention, reference is. had to theaccompanying drawings, forming a part of this specification, of Which-AFigure 1 is a plan of my plow.

Figure 2 is a side elevation,rwith a section through X Xp.

Similar letters of reference in each of the iignres indicate like parts.

A is a strong framework of wood, mounted upon two `bearing-wheels, B B',and supporting the shafts or axles C C, to which the plows are attached.These axles turn in boxes, D, on the frame. Iron blocks E E' areattached to the axles by set-screws F F, and the Shanks G G'ot` theplows H H pass `entirely through these blocks, and are held byset-screws I, so that the plows may'be elevated or lowered, at pleasure.Bent arms J .and J' extend forward from the blocks E E', and have theregulating-screws K K' passing vertically through their front ends, thescrew K' resting on the bar L while the screw K rests upon the block E".By turning the'se screws to .the right or left`,`r`the plows are eitherraised or lowered, so as to vary the depth oi' the furrows, while by thewedgesa'ftthe plows may be turnedto or from the land.

The arm J is bent upward far enough-to form a convenient handle at M, bywhich the driver can raise the plow. Anotherbent arm, N, extendsforwardfroln the block E", and has a loose connecting-rod,. O, which canbe attached to the lever-handle M, so that both plows can be raised toclear obstructions, or one may be raised by detaching this rod. A catch,P, is attached to the frame, so that, when desired, the plows may bepermanently raised from the ground, the catch holding uprthe arm J', andby means of that the arm J.

The wheel B is mounted upon a stationary axle, extending partly acrossthe frame, while the axle of the wheel B' is bent at right angles, so asto extend upwards at the side of theframe. At the topit is again bent,soas to form a strong nut, R, over the frame. Through this'nut the screwS passes vertically, its lower end resting upon an iron plate on theframe, while .the upper end may be provided witha crank or hand-wheel,V, by

which to operate it. The screw passes, with a shoulder, throughthestandard T, by which it is supported, so as to move the' wheel andits 4axle up and down when turned. v

By this arrangement. the furrow-wheel can be lowered, so as to level themachine, when it is not at work, or it may be raised so :is to be levelwhen moving from place to place on the road, and the plows can beVthrown np at the same time, and be retained by the catch P, thus makinga simple and easily-regulated plow.

The wheel B B' and the centre-wheel I; are made convex, as shown at C C,so that they will run steadiel" and the soll will not adhere t0 them,thus makingthem self-cleaning.

I Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

l. -The plows' H H, in combination with the blocks E E', thcholding-screws I I, by which the plows are adjusted, and the wedges a a,constructed and arranged substantially as described. v

2. The'bloeks E E mounted upon the axles C C', and the bent arms J J',witht-he set-screws K K' for regulatf `ing the depth of the farrows,substantially as described.

3. The bent arm N andconnecting-lod O, with the handle M and the`09.12011 P, for diseugaging the plows,

substantially as described.

4. The beni'l axle R, with the nut; R and the screw S, formaising anddepressing the furrow-wheel, substan tially as described. l

In witness whereof, I have hereunto set my hand and seal. l

' J. T. WATKINS. [L. 8.]

Witnesses: v

C. W. M. SMITH, J L. BOONE.

